Merge pull request #3 from pypr/add-pyproject

Add pyproject.toml and cleanup setup.

MANIFEST.in

@@ -1,4 +1,4 @@
-include MANIFEST.in *.py *.rst *.yml *.sh *.txt
+include MANIFEST.in *.py *.rst *.yml *.sh *.txt *.toml
 recursive-exclude pyzoltan *.cpp
 recursive-include pyzoltan *.pxd *.h *.txt
 recursive-include docs *.*

pyproject.toml

@@ -0,0 +1,3 @@
+[build-system]
+requires = ['cyarray', 'Cython>=0.20', 'mpi4py>=1.2', 'numpy', 'setuptools',
+            'wheel']

setup.py

@@ -271,9 +271,10 @@ def setup_package():
 
     # The requirements.
     install_requires = [
-        'cyarray', 'numpy', 'Cython>=0.20', 'setuptools>=6.0', 'mpi4py>=1.2',
-        'pytest>=3.0'
+        'cyarray', 'numpy', 'Cython>=0.20', 'setuptools>=6.0', 'mpi4py>=1.2'
     ]
+    tests_require = ["pytest>=3.0"]
+    docs_require = ["sphinx"]
 
     ext_modules = get_parallel_extensions()
     if MODE != 'info' and _is_cythonize_default():
@@ -320,6 +321,11 @@ def setup_package():
           include_package_data=True,
           cmdclass=cmdclass,
           install_requires=install_requires,
+          extras_require={
+              "docs": docs_require,
+              "tests": tests_require,
+              "dev": docs_require + tests_require,
+          },
           zip_safe=False,
           platforms=['Linux', 'Mac OS-X', 'Unix', 'Windows'],
           classifiers=[c.strip() for c in """\